Cambrian explosion

Discoveries Scientists find evidence for an ancient supercontinent that covered 80 percent of Earth’s surface

Isotope mapping reveals millions of square kilometers of lost Gondwanan crust hidden beneath Asia, Europe and North America.

Discoveries Ancient animal feces may have helped transform Earth’s oceans 540 million years ago Joseph Shavit

Green Impact How animal feces became an evolutionary force 540 million years ago Joseph Shavit

Discoveries Fossil discovery solves 500-million-year-old mystery about the dawn of animal life Rebecca Shavit